Gur'pa, the Fallen

Flying, protection from white
This card attacks each turn if available.
This card must be blocked if available.
Discard a card: Target creature gets a -1/-1
counter.
Whenever this card deals combat damage to target player, double the -1/-1 counters on the
battlefield.
Hellbent - If you don't have cards in your hand,
Gur'pa, the Fallen gains double strike.